淮北平原年降水量空间插值模型的比选  

Comparison of Spatial Interpolation Models for Annual Precipitation in Huaibei Plain

作　　者：王常森[1] 陶月赞[1] 方必和[2] 

机构地区：[1]合肥工业大学土木与水利工程学院,安徽合肥230009 [2]合肥工业大学管理学院,安徽合肥230009

出　　处：《水文》2012年第2期49-53,共5页Journal of China Hydrology

基　　金：安徽省高等学校自然科学重大基金(ZD2009908)

摘　　要：为对比不同变差模型在降水量空间插值中的优劣,对淮北平原185个雨量站的2009年年降水观测数据,分别用不同理论变差模型与实验变差值拟合,然后选择普通克里格法进行降水场的变异分析及插值。经交叉验证法等多指标对插值结果检验后,证实了区域降水量具有明显的空间相关性,且三种拟合后变差模型的差异主要在短距离(h<10km)内。同时在现有站网布设方式下,三种模型插值结果并无显著差异,但以球状函数拟合插值结果整体效果最佳。In order to compare the advantages and disadvantages of different variogram models of rainfall spatial interpolation studies, rainfall spatial field variation and interpolation were analyzed by using ordinary Kriging method with the samples of annual rainfall in Huaibei Plain. Through comparing the results of the interpolation of different variogram models with cross-validation and other methods,it is indicated that the spatial correlation of Huaibei Plain is stronger, and there is no significant differences between the results of the different variogram models, the results of spherical model method can obtain the better integer effect under the existing rainfall station network.

关 键 词：年降水 普通克里格插值 变差函数 格网法 

分 类 号：TV125[水利工程—水文学及水资源]